throw/fling/cast caution to the wind

throw/fling/cast caution to the wind

: to stop being careful and do something that is dangerous or that might result in failure

After thinking about it for years, he finally threw/flung/cast caution to the wind, quit his job, and started his own company.

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Main Entry: ↑caution

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throw/fling/cast caution to the wind — see ↑caution, 1

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Main Entry: ↑wind